Fleece Cummins Coolant Bypass Kit (2003-2005 Auto Trans) w/ Stainless Steel Braided Line DIFF COVERS AND PANS 1998.5-2002 CUMMINS 5.9L Includes longer U-bolt and hardware

Includes longer U-bolt and hardware

Separate fill and drain ports

Extra Flexible Smooth Bore Tefllon Hose with thermal heat shield

Up to 680hp with supporting modifications

Monitor key vehicle parameters like EGT

Fleece Cummins Coolant Bypass Kit (2003-2005 Auto Trans) w/ Stainless Steel Braided Line DIFF COVERS AND PANS 1998.5-2002 CUMMINS 5.9L Includes longer U-bolt and hardwareIncreased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5. 9 6. 7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Our coolant bypass kit adds a secondary